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Infinity REF1070

Reference Series 10" component subwoofer with selectable impedance

Item # 108R1070M

Ever since Infinity began making speakers, they've been known for quality construction and great sound.

Ever since Infinity began making speakers, they've been known for quality construction and great sound.

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About the Infinity REF1070

Quality, great sound, and versatility

Ever since Infinity began making speakers, they've been known for quality construction and great sound. These Reference Series subwoofers also put the spotlight on versatility, with the ability to vary the sub's impedance with the flip of a switch.

Quality, great sound, and versatility

Ever since Infinity began making speakers, they've been known for quality construction and great sound. These Reference Series subwoofers also put the spotlight on versatility, with the ability to vary the sub's impedance with the flip of a switch.

Handles up to 250 watts

Infinity's Reference Series REF1070 10" sub sports a 2" diameter voice coil for good power handling, while airflow from the cone's movement cools the voice coil for increased reliability.

This sub features a polypropylene cone for enhanced stiffness, along with a rubber surround that'll stand up to the abuses of life in an automobile. The stamped steel basket provides a stable home so this sub can play accurately at high levels. The REF1070 handles up to 250 watts RMS (1000 watts peak), and works equally well in sealed or ported enclosures, another example of its versatility.

Selectable impedance

The sub's Selectable Smart Impedance (SSI™) switch allows you to change impedance from 2 ohms to 4 ohms, so you can optimize the sub for your system and the amplifier. This feature makes it easy to reconfigure your system when you add another Reference Series subwoofer or upgrade your amplifier.

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Product highlights:

  • 10" component subwoofer
  • switchable 2- or 4-ohm impedance
  • polypropylene cone
  • nitrile rubber surround
  • power handling: 250 watts RMS (1000 watts peak)
  • frequency response: 30-175 Hz
  • sensitivity (2.83V at 1 meter): 92 dB
  • mounting depth: 5-11/16"
  • sealed box volume: 0.5 cubic feet
  • ported box volume: 1.5 cubic feet
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # INFREF1070AM

What's in the box:

  • One 10" Woofer
  • Owner's manual (English/ French/ Spanish/ German/ fourteen other languages)

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

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Features

Selectable Smart Impedance (SSI): A switch on the input terminal allows you to easily change the woofer's impedance between 2Ω and 4Ω settings. (The connected amplifier should be off when changing the impedance.) The power handling is the same for either setting; 250 watts RMS/1000 watts peak.

Enclosure Recommendations:

  • Sealed Box Volume: 0.5 ft³
  • Ported Box Volume: 1.5 ft³ with one 3" diameter x 11.3" long port (tuned to 30 Hz)
  • Free-Air: The woofer can also be mounted in free air to a baffle board (infinite baffle, no enclosure). When mounted in free air, the power handling is reduced by half (to 125 watts RMS).
  • Band-Pass: Infinity also recommends a prefabricated band-pass enclosure, but no volume specifications are listed in the manual. Band-pass enclosures often provide the most output available from any amplifier and subwoofer combination, but at the expense of sonic accuracy.

Thiele-Small Parameters: Some of the parameters change based on the impedance setting:

 
Re (Ω) 2.00 4.30
Le (mH) 1.21 0.77
Sd (cm²) 330.10 330.10
Bl (Tm) 10.20 13.60
Vas (liters) 32.30 30.60
Cms (μm/N) 210 200
Mms (g) 134.00 133.90
Fs (Hz) 29.90 30.70
Qms 4.10 2.60
Qes 0.48 0.60
Qts 0.43 0.49
Xmax (mm) 9.25 9.25

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